Sole or heel burnishing machine



H. BOND.

SOLE '03 HEEL BURNISHING MACHINE.

(No Model.)

No. 276,345. Patented Apr.24,1883.

1 wave r1760 1"- :4. P515. Phum-Lithugrapher, Wishil'giurk DC.

UNITED STATES PATENT OFFICE.

HIRAM BOND, OF HAVERHILL, MASSACHUSETTS.

SQLE OR HEEL BURNISHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 276,345, dated April24:, 1883.

Application filed Febrnary'lQ, 1883. (No model.)

To all whom it may concern:

Be it known that I, HIRAM BOND, of Haverhill, in the county of Essex andState of Massachusetts, have invented certain Improvements in Sole orHeel Burnishing Machines, of which the following is aspecification.

This invention has for its object to provide improved means forsupporting and driving a rotary heel or sole edge burnishing tool, andpermitting the same to assume all the different positions required topresent it properly to all parts of the surface to be acted on.

The invention consists in the improved devices which I will now proceedto describe and claim. I

Of the accompanying drawings, forming a part of this specification,Figure 1 represents a side elevation of a burnishing-machine embodyingmyimprovements. Fig. 2 represents a front elevation of the same. Fig. 3represents an enlarged section on line at m, Fig. 1.

Fig. 4 represents a section on line y 3 Fig. 3.

The same letters of reference indicate the same parts in all thefigures.

In the drawings, 0 represents a fixed frame adapted for attachment to abench or other support.

1) represents a driving-shaft journaled in fixed bearings in the upperpart of the frame a, and provided with a fast pulley, c, and a loosepulley, c, for the driving-belt, and with a grooved pulley, d. a

e represents a laterally-movable shaft having on its endsfriction-rollers ff, adaptedto run in fixed segmental slots in thedirection of the length of the slots, tracks, or guides g g in the sidepieces of the frame a. Said slots are segments of a circle whose centeris the driving-shaft 1); hence the shaft 0, while it is free to movelaterally in said slots, is kept thereby at a uniform distance from theshaft b, so that the belt that connects the pulley d on the shaft b witha pulley, d, affixed to the shaft 0 is not afiected by the movements ofthe latter. The shaft 6 has no movement in the direction of its ownlength or crosswise of the slots 9 g. l

h represents the rotary stock or shaft which holds the burnishing-tooli. Said stock is provided with a pulley, l, belted to a pulley, m, onthe shaft e, and is journaled in ahead, 12, which is provided with ahandle, q, for the operator to grasp, and a 'bail,-r, attached to aspiral spring, s, which constitutes a yielding support for the head andstock. The head 2 and shaft 0 are connected by the following devices,viz: two U-shaped arms, at, journaled, respectively, on the shaft 6 andhead 12, and a rod, to, passing through slots aa/ in theouter orswinging ends of the arms a v, and having hooked ends engaging with eyesI) b, attached to said arms inside of the slots to a, as shown in Figs.3 and 4. The slots 01. a are so formed that they will allow the rod w novertical play in them, but are elongated to allow said rod aconsiderable lateral play. This form of the slots and the connection ofthe rod to the arms a '27 at points inside of the slots at a, or betweenthe slots and the parts to which said arms are pivoted, prevents thearms a '11 from sagging downwardly. The arms a o and rod to constitute aconnecting device between the head 12 and movable shaft 6, which causessaid stock to move back and forth, said shaft thus keeping the belt thatrotates the stock in a uniform state of tension, and also enables thestock to move laterally in a vertical direction and longitudinally in ahorizontal direction, and to be tipped or inclined, all independently ofthe shaft 0, said independent movements being sufficient to enable thetool to assume all the positions required in performing its work.

The toolz' may be of any desired shape, and has a shank which isinserted in a socket in the stock h, in the usual manner.

The boot or shoe issupported by a suitable rotary jack during theoperation, and the tool is moved by the operator as required.

I prefer to interpose a spring, 8'', between the arms a o, as shown inFigs 3 and 4, said spring being supported by the rod wand press ing inopposite directions against the arms a 01, thus keepiugthe hooked endsof the rod in in contact with the outer portions of the eyes b, andpreventing said ends from rattling or moving in said eyes enough to varythe tension of the belt that drives the tool-stock.

I claim 1. In a burnishing-machine having as elements the driving-shaftb, journaled in fixed bearings, the laterally-movable shaft 2, hav

inga pulley belted to a pulley on the shaft b, the tool-carrying stockh, supporting apulley belted to a pulley on the shaft 0, the head 12,supporting said stock, and connected to the shaft 0 by ajointedconnection, substantially as described, the combination, with saidelements, of the friction-rollers ff on the movable shaft 0, and thefixed segmental tracks or guides g g for said rollers, whereby the shaft0 is kept at a uniform distance from the driving-shaft, and is guided inits lateral movements, as set forth.

2. The combination of the movable shaft 0, belted to a driving-shaft,the tool-carrying stock h, belted to themovable shaft 0, the head 4 12,supporting said stock, and theintermediate connecting devices composedof the arms 11-12,.

to this specification,in the presence of two subscribing witnesses, this14th day of Feb- 25 ruary, 1883.

. HIRAM BOND.

Witnesses 0. F. BROWN, A. L. WHITE.

